Sealant Nozzle Cap - Silicon Cap - Silikon Stopsel

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I despise it when the short silicone cartridge is dry again next time... So here's a closure. To make it seal optimally, simply put a rubber band on the thread beforehand (it doesn't have to be). The closure is designed so that the rubber band gets pressed in and thus seals the tube super tight. If you want you can use a normal rubber band to seal the cap extra securely.